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Photosynthetic response dynamics in the invasive species Tithonia diversifolia and two co-occurring native shrub species under fluctuating light conditions

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Plant Diversity 2024年第2期46卷 265-273页

作者： ju li Shu-Bin Zhang Yang-Ping li CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunMengla 666303YunnanChina University of Chinese Academy of Sciences Beijing 100049China

To determine the invasiveness of invasive plants,many studies have compared photosynthetic traits or strategies between invasive and native ***,few studies have compared the photosynthetic dynamics between invasive and native species during light *** compared photosynthetic induction,relaxation dynamics and leaf traits between the invasive species,Tithonia diversifolia and two native species,Clerodendrum bungei and Blumea balsamifera,in full-sun and shady *** photosynthetic dynamics and leaf traits differed among *** showed a slower induction speed and stomatal opening response but had higher average intrinsic water-use efficiency than the two native species in full-sun ***,the slow induction response may be attributed to the longer stomatal length in *** had a significant effect on photosynthetic dynamics in *** and *** but not in *** shady habitat,*** had a faster photosynthetic induction response than in full-sun habitat,leading to a higher average stomatal conductance during photosynthetic induction in *** than in the two native *** contrast,*** had a larger stomatal length and slower photosynthetic induction and relaxation response in shady habitat than in full-sun habitat,resulting in higher carbon gain during photosynthetic ***,in both habitats,*** had an overall higher carbon gain during light fluctuations than the two native *** results indicated that *** can adopt more effective response strategies under fluctuating light environments to maximize carbon gain,which may contribute to its successful invasion.

关键词： Invasive plant Photosynthetic induction Photosynthetic relaxation Carbon gain Stomatal traits Tithonia diversifolia

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Impact of the Complex Terrain in Beijing on Formation of Low-Level Jets

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Journal of Meteorological Research 2024年第1期38卷 138-150页

作者： li’ao ZHOU Chenggang WANG Shiguang MIAO ju li School of Atmospheric Physics Nanjing University of Information Science&TechnologyNanjing 210044 Institute of Urban Meteorology China Meteorological AdministrationBeijing 100089 Key Laboratory of Urban Meteorology China Meteorological AdministrationBeijing 100089

This study investigated how the Taihang Mountains and the Yanshan Mountains affect low-level jets(LLJs)in the Beijing area,based on conventional radiosonde observations from Nanjiao Observatory(2016–2017)and high-resolution Weather Research and Forecasting–Advanced Research WRF(WRF-ARW)model *** of radiosonde observations indicated that LLJs in the study area are mainly from the southwest and northwest directions,with occurrence frequency of 44.6%and 33.0%,***(northwest)LLJs are aligned parallel(perpendicular)to the orientation of the Taihang Mountain *** sensitivity experiments using the WRF-ARW model were then conducted to examine the effects of terrain forcing on the northwest and southwest LLJs,with adopted terrain heights of 100%and 50%.The results showed that for northwest LLJs,reduction in the elevation of the Taihang Mountain Range led to weakening of jet intensity by approximately 20%and reduction in jet maximum height by approximately 250 m;lowering the Yanshan Mountain Range had minor influence on the northwest LLJs,with only a 5.2%reduction in intensity and no substantial change in jet maximum *** southwest LLJs,reduction in the elevation of both the Taihang and Yanshan Mountain ranges resulted in minor changes in the intensity and height of the *** analysis revealed that the topography in the Beijing area could modulate the height and intensity of the stable layer by altering the inversion structure within the boundary *** LLJs can develop rapidly within the stable layer,and both the location and the scale of the jet core exhibited reasonable agreement with the extent of the stable layer.

关键词： low-level jets(LLJs) mesoscale numerical simulation terrain forcing

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Multi-scale analyses of phase transformation mechanisms and hardness in linear friction welded Ti17(a+β)/Ti17(β)dissimilar titanium alloy joint

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Chinese Journal of Aeronautics 2024年第1期37卷 312-324页

作者： Zhenguo GUO Tiejun MA Xiawei YANG ju li Wenya li Achilles VAIRIS State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Friction Welding TechnologiesNorthwestern Polytechnical UniversityXi’an 710072China Aeronautical Key Laboratory for Welding and Joining Technologies AVIC Manufacturing Technology InstituteBeijing 100024China Mechanical Engineering Department University of West AtticaAthens 12241Greece

The Ti17(a+β)-Ti17(β)dual alloy-dual property blisk produced using linear Friction Welding(LFW)is considered as high-performance component in advanced ***,up to now,microstructure evolution and relationship between microstructure and micro mechanical properties of LFWed Ti17(a+β)/Ti17(β)dissimilar joint have not been thoroughly *** this work,complex analyses of the phase transformation mechanisms of the joint are conducted,and phase transformations in individual zones are correlated to their microhardness and *** reveal that a dissolution occurs under high temperatures encountered during LFW,which reduces microhardness of the joint to that of Ti17(a+β)and Ti17(β).In ThermoMechanically Affected Zone of Ti17(a+β)(TMAZ-(a+β))side joint,a large number of nanocrystalline a phases form with different *** microstructure strengthens significantly by fine grains which balances partial softening effect of a dissolution,and increases nanohardness of a phase and microhardness of TMAZ-(a+β).Superlattice metastableβphase precipitates from metastableβin Weld Zone(WZ)during quick cooling following welding,because of short-range diffusion migration of solute atoms,especiallyβstabilizing elements Mo and *** precipitation of the superlattice metastableβphase results in precipitation strengthening,which in turn increases nanohardness of metastableβand microhardness in WZ.

关键词： linear friction welding Ti17 titanium alloy Phase transformation Microhardness Nanohardness

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Central cell:the key to determine persistent pollen tube attraction or termination

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Science China(life Sciences) 2024年第9期67卷 2030-2032页

作者： Jiang-Guo Meng Shi-Zhen li Hong-ju li Center for Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation Integrative Science Center of Germplasm Creation Western China(Chongqing)Science CitySchool of Life SciencesSouthwest UniversityChongqing400715 China Key Laboratory of Seed Innovation Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Center for Molecular Agrobiology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China

Most eukaryotic species depend on sexual reproduction,characterized by fertilization,to produce a new *** process requires the transfer of sperm(male gamete),containing half of the genetic information,from the male to the egg cell(female gamete),which holds half of the maternal genome,within the female reproductive *** strategies have been evolved to ensure fertilization success in plants.

关键词： organs termination holds

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How Should the Chinese Economic Situation Be Viewed?

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Qiu Shi 2024年第2期16卷 19-29页

作者： ju li 不详

Asound understanding of the economic Lsituation is a fundamental prerequisite for accomplishing work in the economic *** its complexity,how should the present economic situation in China be viewed?This issue has garnered attention both at home and *** we are to cut through the layers of fog to grasp objective development laws,pinpoint overall trends,and draw the correct conclusions,the guidance of well-founded theories is *** the 18th National Congress of the Communist Party of China(CPC)in 2012,Xi Jinping,as CPC Central Committee General Secretary and President of China.

关键词： economic founded Communist

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Laparoscopic left hemihepatectomy guided by indocyanine green fluorescence: A cranial-dorsal approach

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 409-418页

作者： Xing-Ru Wang Xiao-ju li Dan-Dan Wan Qian Zhang Tian-Xi liu Zong-Wen Shen Hong-Xing Tong Yan li Jian-Wei li Institute of Hepatobiliary Surgery First Affiliated HospitalArmy Medical UniversityChongqing 400038China Department of Hepatobiliary Surgery Qujing Central Hospital of Yunnan Regional Medical CenterQujing 655000Yunnan ProvinceChina School of Clinical Medicine Qujing Medical CollegeQujing 655000Yunnan ProvinceChina

BACKGROUND Advancements in laparoscopic technology and a deeper understanding of intra-hepatic anatomy have led to the establishment of more precise laparoscopic hepatectomy(LH)*** indocyanine green(ICG)fluorescence navi-gation technique has emerged as the most effective method for identifying hepatic regions,potentially overcoming the limitations of *** laparoscopic left hemihepatectomy(LLH)is a standardized procedure,there is a need for innova-tive strategies to enhance its *** anatomical markers,surgical skills,and ICG staining *** Thirty-seven patients who underwent ICG fluorescence-guided LLH at Qujing Second People's Hospital between January 2019 and February 2022 were retrospectively *** cranial-dorsal approach was performed which involves dissecting the left hepatic vein cephalad,isolating the Arantius ligament,exposing the middle hepatic vein,and dissecting the parenchyma from the dorsal to the foot in order to complete the anatomical *** surgical methods,as well as intra-and post-surgical data,were recorded and *** hospital’s Medical Ethics Committee approved this study(Ethical review:2022-019-01).RESULTS Intraoperative blood loss during LLH was 335.68±99.869 mL and the rates of transfusion and conversion to laparotomy were 13.5%and 0%,*** overall incidence of complications throughout the follow-up(median of 18 months;range 1-36 months)was 21.6%.No mortality or severe complications(level IV)were *** LLH has the potential to become a novel,standardized approach that can effectively,safely,and simply expose the middle hepatic vein and meet the requirements of precision surgery.

关键词： Laparoscopic left hemihepatectomy Indocyanine green Cranial-dorsal approach Laparoscopic hepatectomy Arantius ligament Glissonean pedicle

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Establishment of acquired tracheoesophageal fistula using a modified magnetic compression technique in rabbits and its postmodeling evaluation

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1385-1394页

作者： Han Meng Fu-Yao Nan Na Kou Qin-Yan Hong Ming-Sheng Lv ju-Bo li Bao-Jie Zhang Hang Zou Lei li Hong-Wu Wang Respiratory Disease Center Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100029China The First Clinical Medical College Beijing University of Chinese MedicineBeijing 100700China Department of Animal Experimental Center National Center for CardiovascularFuwai HospitalBeijing 100037China

BACKGROUND Previous studies have validated the efficacy of both magnetic compression and surgical techniques in creating rabbit tracheoesophageal fistula(TEF)*** compression achieves a 100%success rate but requires more time,while surgery,though less frequently successful,offers rapid model establishment and technical maturity in larger animal *** To determine the optimal approach for rabbit disease modeling and refine the *** TEF models were created in 12 rabbits using both the modified magnetic compression technique and *** of the time to model establishment,success rate,food and water intake,weight changes,activity levels,bronchoscopy findings,white blood cell counts,and biopsies were *** response to the failures encountered during modified magnetic compression modeling,we increased the sample size to 15 rabbit models and assessed the repeatability and stability of the models,comparing them with the original magnetic compression *** The modified magnetic compression technique achieved a 66.7%success rate,whereas the success rate of the surgery technique was 33.3%.Surviving surgical rabbits might not meet subsequent experimental requirements due to TEF-related *** the modified magnetic compression group,one rabbit died,possibly due to magnet corrosion,and another died from tracheal magnet *** events occurred during the second round of modified magnetic compression modeling,with one rabbit possibly succumbing to aggravated lung *** operation time of the first round of modified magnetic compression was 3.2±0.6 min,which was significantly reduced to 2.1±0.4 min in the second round,compared to both the first round and that of the original *** The modified magnetic compression technique exhibits lower stress responses,a simple procedure,a high success rate,and lower modeling costs,making it a more appropriate choice for constructing TEF models in

关键词： Tracheoesophageal fistula Modified magnetic compression technique Post-modeling evaluation Pneumonia Malnutrition

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Bibliometric and visual analysis of post-stroke hemiplegia in the past 20 years

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Clinical Research Communications 2024年第3期7卷 29-37页

作者： Jie li Xue-Min Yin Yong-Fang Yang Xin-ju li Acupuncture department Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300120China. School of Acupuncture Moxibustion and Tuina Tianjin University of Traditional Chinese MedicineTianjin 301617China. College of Traditional Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China.

Objective:The purpose of this study is to use CiteSpace software to examine the development patterns and hotspots in post-stroke hemiplegia research during the last 20 ***:Articles about post-stroke hemiplegia from January 2005 to December 2024 were analyzed in the Web of Science *** software was used to conduct co-citation analysis of the articles about post-stroke hemiplegia as well as cooperative network analyses of authors,countries,and institutions,as well as keyword co-occurrence,clustering,emergence,and time line *** results were displayed in a visual ***:A total of 2625 papers were obtained,and there were more publications *** and the United States had the most number of articles,while Chae,John was the author with the most number of *** Med University and Ohio State University had the most articles among their *** keywords"stroke"and"rehabilitation"were used the *** key word analysis indicates that the present study focus is on exercise rehabilitation measures and post-stroke ***:Using CiteSpace software to analyze the literature on post-stroke hemiplegia,it is discovered that the use of new technologies in the field of mechanical thrombectomy and the effectiveness of rehabilitation techniques like mirror treatment are the key areas of study *** study has positive significance for finding safer and more effective treatments for post-stroke hemiplegia.

关键词： CiteSpace stroke hemiplegia visual analysis

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含高比例光伏配电网中计及需求侧响应的混合储能配置优化

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高电压技术 2024年第4期50卷 1416-1425页

作者：马丽李伟裴玮肖浩鞠力顾靖达中国科学院电工研究所北京100190 长时规模储能重点实验室(中国科学院) 北京100190 国网北京市电力公司北京100031 北京电力经济技术研究院有限公司北京100055

大力发展光伏等可再生能源是我国实现“双碳”目标的重要途径,而光伏高比例接入配电网后随之带来一系列问题。以含高比例光伏配电网为研究对象,提出了计及用户侧需求响应的混合储能优化配置方法。针对负荷和光伏出力的双重不确定性,提... 详细信息

大力发展光伏等可再生能源是我国实现“双碳”目标的重要途径,而光伏高比例接入配电网后随之带来一系列问题。以含高比例光伏配电网为研究对象,提出了计及用户侧需求响应的混合储能优化配置方法。针对负荷和光伏出力的双重不确定性,提出了基于预测误差概率分布的不确定性场景确定方法。考虑系统不确定性,统筹运行阶段用户侧需求响应调控措施以及潮流约束,提出了储能配置的3层优化模型。针对优化模型提出了相应的分解方法,以及基于列和约束生成算法的求解实施流程。通过在IEEE-33节点测试系统中的应用,使得系统可平移负荷峰值下降了10%,节点电压维持在合理范围,并在指导储能配置等方面具备显著的应用效果。通过分析光伏比例灵敏性可知,不含光伏情况下的储能总容量相比100%光伏比例场景增加了90%。

关键词：储能配置优化光伏配电网需求侧响应系统不确定性

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A study on the treatment of chloasma with moxibustion based on the theory of“Yang transforming Qi,and Yin shaping”

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Clinical Research Communications 2024年第3期7卷 23-28页

作者： Mi Yang Hong-Yi Lan Hong Wu Xu Wang Xin-ju li Baokang Hospital Affiliated to Tianjin University of Traditional Chinese Medicine Tianjin 300193China. Cardiology Dept Wuxi Traditional Chinese Medicine HospitalWuxi 214071China. Acupuncture&Moxibustion Dept Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300131China. College of Traditional Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China.

Background:“Yang Transforming Qi and Yin shaping”comes from“Plain Question Yin and Yang should be like the theory”.Chinese medicine believes that the imbalance of yin and yang is the cause of human *** of the strengths of TCM in treating diseases is holistic *** theory of“Yang transforming Qi,and Yin shaping”implies a strong holistic ***,one of the common skin diseases,seriously affects the physical and mental health of patients due to its unclear etiology,difficult treatment and easy *** occurrence and development of chloasma are closely related to internal *** paper is based on the theory of internal meridian,“Yang transforming Qi,and Yin shaping”which attaches importance to the concept of“Yang Qi”,from a new understanding of the pathogenesis etiology of ***:The author believes that the incidence of the disease is the deficiency of Yang Qi,which can’t promote the movement of Qi and blood to nourish the face,resulting in tangible material condensation,so proposes that this disease needs to be promoted by Yang transforming Qi and warm to *** belongs to the fire,and its warming effect can dissipate the tangible ***:Combined with clinical practice and the theory of internal meridian,the author elaborated that moxibustion is one of the effective methods for treating chloasma,which provides a new way of thinking for the treatment of ***:“Yang Transforming Qi and Yin shaping”can be used to guide the treatment of chloasma.

关键词： Yang Transforming Qi and Yin shaping moxibustion chloasma

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